Cutting-machine



(No Model.) 2 Sheets-Sheet 1. A. WARTH.

CUTTING MACHINE. No. 255,358. Patented Mar. 21.18.82.

(No Modem. Y 5 2 sheets-sheet, 2.'

A. WARTH. CUTTING MACHINE. No. 255,358, y y Patented MaLZLlSB-Z.

N. PETERS. Phnm-Limugmpher. wnshngmn, D. t:A

UNITED STATES PATENT OFFICE.

yALBIN VARTH, OF STAPLETON, NEV YORK.

CUTTING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 255,358, dated March21, 188,2.

Application filc(ll `cbruaryl0,1882. (No model.)

1'0 all whom it may concern:

.Beit known that I, ALBIN WARTH, a cilizen of the United States,residing at Stapleton, in the county of Richmond and State of New York,have invented new and useful Improvementsin Cutting-Machines, of whichthe following is a specification.

This invention relates to the class ofcuttingmachines which embody avertically-reciprocating knif'e whose cutting-edge is adapted to cnt inan upward direction. In this class of machines the material to be cuthas hitherto been entirely supported by the upper ends of verticalelastic pins or wires forming an open or penetrable bed; but thiscontrivance is objectionable because the material is liable to becaughtby thepins, and especially the cut edges thereof, which interfereswith the progress ot' the knife in following the pattern; also, becausethe pins have a tendency to prevent a movement of the material towardand past the knife, which movementis necessary in cutting small piecesof material; also, because when, asis usual, the pins arc applied toV awooden base the bed formed thereby is liable to loseI its true level bythe warping of the wood.

To overcome these objections is the primary object of my invention,which consists in certain novel combinations of parts, hereinafter fullyset forth, whereby while the greater part of the material is supportedby pins a solid support is afforded to the portion ofthe material whichis at or near the point at which it is cut.

This invention is illustrated in the accompanying drawings, in whichFigure l represents a side view, partly in section. Fig. 2 is ahorizontal section on the line .fr x, Fig. 1. Fig. 3 is a vertical crosssection on the line y y, Fig. 1. Fig. .4 shows the knife detached. Fig.5 illustrates a modification of the knife. Fig. 6 is a perspective viewshowing the driving mechanism.

' Similar letters indicate corresponding parts.

The lezterA designates the cloth-supporting bed, consisting of uprightpins or projections s, rising from a suitable base, such pins beingpreferably made of an elastic materialsuch as tempered steel. Upon thisbed rests, when in use, the base B of my machine, commonly termed aclothplate,7 which is preferably made circular, and from which rises astandard, C, in or upon which is arranged the knife or cutter D. Thisknit'e D is xed to a bar, F, (see Fig. 3,) connecting with an eccentricwrist-pin, e, upon a revolving disk, G, whence the knife receives avertically-reciprocating motion. The disk Gis xed to a shaft,

Gf, having its bearings in an arm, Gr2,swiveled its mouth downward', insuch a manner as to receive in it the cutting-edge o of the knife, thissocket being applied to the standardG, and having at least oneapproximately sharp edge, and" preferably two, adapting it to cooperatewith the knife-edge. The socket moreover, is arranged at a sufficientdistance above the base or cloth plate B to leave a space between thetwo forthe passage of the material, and to permit of varying such spacethe socket is made adjustable relatively to the base, as hereinafterexplained. The motion of the knife D is so gaged relatively to theposition of its cuttingedge o thereon that on the upward stroke of theknife such edge rises from a point below the sutface'of the base orcloth plate B above it a sufficient distance to pass through and out thematerial and enter the socket 1'., while on the downward stroke of theknife it passes below the upper surface of the base.

When the material is to be cut the edge of the hase B is entered betweenthe upper ends of the pins of the bed A and the material, so that thematerial passes over the base to the knife or cutter, whichcuts it asthe machine is shoved along over the pins. Hence, it will be seen, thematerial is furnished with a solid support at or near the point at whichit is cut, while the knife l1 as the proper motion to act on IOO thematerial in the required upward direction. The movement ot' the knife Dbelow the base B is permitted by t-he openings or spaces due to theconstruction ot'the bed of the pins or wires s, such openings receivingtheknife, and this construction ofthe bed, moreover, permits a movementof the cutter and its connections in any direction; but a solid bed orplatform also can be used, the same being provided with a suitableopening for thedescentof theknit'e, the material being in that event.moved toward the knife in cutting.

Vhen the maehineis used upon the wil e bed A the base B is prel'crablybeveled upon its edge or edges, both in an upper and lower direction, toan approximately sharp edge, l, in order to facilitate the movement ofthe base beneath the material.

For the purpose of making the k nife-recciving` socket t' adjustable, itis secured to a vertical rod, i', (see Figs. 1 and 3,) arranged to slidein or upon the cutter-standard C, and the latter is provided with aset-screw, i2, adapted to engage. tllc slide-rod; but other means can bereadily devised and used to effect this purpose.

'lhe cutting operation is facilitated upon the wire bed A by relievingthe bed of the weight ofthe machine, or, in other words, by arrangingthe base or cloth plateB to im pinge against the upper ends of the wires without bearing hard thereon, and this object. is ei'ected inthefollowing manner: The swivel-arm G2 is jointed to a secondary arm, G3,(see Fig. 6,) which swings in a horizontal plane upon a vertical pivot,n, and rests intermediate of ite ends upon a track, H, of segmentalform, by meansof antifriction rollers r, so that the weight of thesecondary arm, together with the swivel-arm and the base B and itsconnections, is practically borne by the track. A vertical shaft, J,forms the joint between the arms Gr2 G3, and such shalt is geared withthe shaft G by means of bevel-wheels II, while it is also geared orconnected with a main shaft, Q, by means of a belt, U, passing over apnlley,f, upon the vertical shaft, a pulley.]", upon the main shaft, andtwo pulleys,f2, upon the pivot u of the secondary arm, the wholeconstituting a driving mechanism for the shaft G', adapted to permit theprogressive movement of the cuttingmechanismin cutting.Suchdrivingmeehauism, however, can be modified as circumstances or theviews of the constructor may render expedient.

The inclination of the edge of the cutter to the upright line in whichthe cutter moves may be varied, and the edge may even be horizontal,provided it points upward, so as to cut while moving upward. Theinclination of the cutting-edge shown in the drawings is, however, in myopinion the best for general use.

In Fig. 5 I have shown the knife D as heilig provided with twocutting-edges, o o', whereby it is adapted to cut both in an upward anddownward direction.

What I claim as new, and desire to secure by Letters Patent, is-

l. The combination, substantially as before set forth, ofthe base of themachine, the cutter-standard, the cutter having an inclined cutting-edgearranged to out in an upward direction, and the knife-receiving socketar ranged above said base, with a space between the two for the passageof cloth.

2. rIhe combination, substantially as before set forth, of the base ofthe machine, the eutterstandard, the cutter having an inclinedcutting-edge arranged to cut in an upward direction, the knife-receivingsocket, arranged with its mouth downward above said base, and the meanscf adjusting the relative position ot said base and said knitereceivingsocket.

3. The combination, substantially as hereinbefore set forth, ofthe base,the vertically-reciprocating knife, the kuifereeeiving socket, arrangedwith its mouth downward and above the cloth-plate to co-operate with thecuttingedge of the knife, and a bed for supporting the cloth-plate,having an opening to allow the movement of the knife.

4. The combination, substantially as hereinbeforc set forth, of the bedcomposed of npright elastic projections, the base movable on such bedbeneath the material to be cut, the standard risingfrom the base andfollowing the cut produced in the material, the vertically-reciprocatingknife having an inclined edge arranged to cut on its upward stroke, andthe knife-receiving socket, arranged mouth downward above the base toco-operatewith the cutting-edge of the knife.

5. The combination, subslantiallyas hereinbefore set forth, ofthe baseer cloth plate, the cutter-statalard, the knife having an inclinedcutting-edge adapted to out in an upward direction, the knife-receivingsocket, arranged above the base with its mouth downward, and

the swivel-arm.

(i. The combination, substantially as before set forth, ofthe base, thecutter-standard, the knife having an inclined cutting-edge adapted tocut in an upward direction, the knife-receiving socket, arranged abovethe base with its mouth downward, the swivel-arm, the secondary armjointed to the swivel-arm, the track supporting the secondary arm, andthe driving mechanism of the cutter.

In testimony whereof I have hereunto set my hand and seal in thepresence of two subscribing witnesses.

All 31N WARTII. [L. S.]

Witnesses:

W. HAU'FF, CHAS. WAHLERS.

TOO

IIC

